Note (and slightly repair) a misfeature in the demo app.

Example/ZcashLightClientSample/ZcashLightClientSample/List Transactions/TransactionsDataSource.swift

@@ -37,8 +37,10 @@ class TransactionsDataSource: NSObject {
         case .cleared:
             let rawTransactions = await synchronizer.transactions
             for transaction in rawTransactions {
-                let memos = try await synchronizer.getMemos(for: transaction)
-                transactions.append(TransactionDetailModel(transaction: transaction, memos: memos))
+                if transaction.minedHeight != nil {
+                    let memos = try await synchronizer.getMemos(for: transaction)
+                    transactions.append(TransactionDetailModel(transaction: transaction, memos: memos))
+                }
             }
         case .received:
             let rawTransactions = await synchronizer.receivedTransactions

Example/ZcashLightClientSample/ZcashLightClientSample/Transaction Detail/TransactionDetailViewController.swift

@@ -10,6 +10,10 @@ import UIKit
 import ZcashLightClientKit
 
 final class TransactionDetailModel {
+    // FIXME: This enumeration does not represent a sensible set of potential transaction states.
+    // A transaction may be both sent from and received by the same wallet, and in either
+    // case this designation is orthogonal with respect to whether the transaction is
+    // in a pending, mined, or expired state.
     enum Transaction {
         case sent(ZcashTransaction.Overview)
         case received(ZcashTransaction.Overview)
@@ -62,7 +66,11 @@ final class TransactionDetailModel {
     }
     
     init(transaction: ZcashTransaction.Overview, memos: [Memo]) {
-        self.transaction = .cleared(transaction)
+        if transaction.minedHeight == nil {
+            self.transaction = .pending(transaction)
+        } else {
+            self.transaction = .cleared(transaction)
+        }
         self.id = transaction.rawID
         self.minedHeight = transaction.minedHeight
         self.expiryHeight = transaction.expiryHeight